Home / 11,999.31-18,000.46-4,102.62

Finding the Fourth Proportional to 11,999.31, 18,000.46 and 4,102.62

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Solution

The fourth proportional to 11,999.31, 18,000.46 and 4,102.62 is: 6,154.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,999.31 : 18,000.46 = 4,102.62 : x
  2. Step 2: Convert to fraction form
    11,999.31/18,000.46 = 4,102.62/x
  3. Step 3: Cross multiply
    11,999.31x = 18,000.46 × 4,102.62
  4. Step 4: Simplify right side
    11,999.31x = 73,849,047.21
  5. Step 5: Solve for x
    x = 73,849,047.21/11,999.31
  6. Step 6: Final answer
    x = 6,154.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.